Carburetor



(No Model.)

P. KELLER.

GARBURETOR. No. 431,059. Patented July 1, 1890.

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1 UNITED STATES PATENT OFFICE.

PETER KELLER, OF CHICAGO, ILLINOIS.

CARBURETOR.

SPECIFICATION forming part of Letters Patent No. 431,059, dated July 1, 1890.

Application filed November 7, 1889, Serial No. 829,472 (No model.)

To all whom it may concern.-

Be it known that I, PETER KELLER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Carburetors, of which the following is a specification.

My invention relates to certain improvements in carburetors of that class which I have described in the United States Patent No. 853,311, granted to me November 30, 1886.

The peculiar and novel construction of my carburetor is pointed out in the following specification and claim, and illustrated in the accompanying; drawings, in which Figure 1 represents a vertical central section. Fig. 2 is a horizontal section in the plane so 00, Fig. 1.

In the drawings, the letter a represents the storage-chamber for the hydrocarbon liquid, and the lower compartment 1), I term the evaporating-chamber. The top of the storage-chamber is provided with a vent and filling-tube c 0, each of which is provided with a stop-cock d d, and also with a screw-cap e 2, respectively, for closing the ends of said tubes. The storage and evaporating cl1amhers are separated from each other by a horizontal partition or diaphragm f, in the cen- V ter of which is an opening 6, through which passes a valve or guide-rod h, carrying a valve t' fixed thereto and of suitable form to correspond with the seat made around said opening. The valve-rod extends up through a yoke and is subjected to the action of a spring Z, which is so adjusted that it retains the valve in its seat against the downward pressure, which is exerted by the liquid in the storage-chamber upon the upper face of the valve 71. The upper end of the valve-rod is guided in a tubular projection formed on or secured to the top of the storagechamber. This projection is closed by ascrew-cap. The vessel forming the storage and evaporating chambers is hermetically sealed and placed within and entirely covered by another vessel 0", provided with a hollow projection s, situated on the top thereof, and inclosing both the vent and the filling-tubes of the storage-chamber. This hollow projection s is provided with a cover 8', adapted to be locked or otherwise fastened thereto, There is in the base of the hollow projection an opening 25, through which water is supplied untilit shall have reached above the vent and filling-tubes. Arranged diametrically opposite to each other are two vertical pipes 41 o passing from the main gas-pipe'u and extendingtherefronitothe evaporating-chamber. One of these vertical pipes extends at a suitable distance below the partition f, while the other stops flush with the under surface of this partition.

From the under surface of the partition f extends a pipe Z nearly to the bottom of the evaporating-chamber b. This pipeis open at its bottom end, and it surrounds the valve i, so that said valve can open downwardly. In the interior of the evaporating-chamber may be suspended strips Z) of felt or other absorbent material.

Mode of operation: The storage-chamber a is supplied with a suitable hydrocarbon liquid through one of the pipes c or c, and by depressing the valve z' a portion of thisliquid is permitted to flow down into the evaporatingchamber, and it rises therein to the level indicated in Fig. 1 of the drawings. When this has been accomplished, the pipes o c and the projection s are closed and the pipes o o are opened. As the gas escapes from the pipe o it spreads over the surface of the hydrocarbon liquid in the evaporating-chamber b, so that it absorbs the vapors rising from this liquid, and it then escapes through the pipe 11 As the vapors rising from the hydrocarbon liquid are carried ofit', the level of this liquid in the evaporating-chamber sinks down and a partial vacuum is formed in the upper portion of the pipe I, so that the valved opens automatically and a fresh supply of hydrocarbon liquid runs down into the evaporating-chamber. As the hydrocarbon liquid rises in the pipe Z, the air in the upper part is compressed and the valve g closes again, and in this manner the operation progresses until the liquid in the storage-chamber is used up.

I do not claim in this application for a patout anything shown and described in my Patent No. 353,311; but it will be seen that by extending the pipe Zbelow the level of the liquid in the evaporating-chamber and near to the bottom thereof the float valve at described in said patent can be dispensed with, and the valve 1' is caused to open and close simply by the alternating rarefaction and compression of the air in the upper portion of the pipe Z.

What I claim as new, and desire to secure by Letters Patent, is

The combination, with the storage-chamber a, the gas supply and discharge pipes n 1?, the evaporating-chamber b, and the Valve 2', of the pipe Z, open below and extending close to the bottom of the evaporating-chamber, to substantially as described.

In testimony whereof I havehereunto set my hand in the presence of two subscribing Witnesses.

PETER KELLER. Witnesses:

ROBERT B. BRANDT, O'rro PERTSCH. 

